Shop By Decoder Interface

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Streamlined Backshop offers a wide variety of DCC decoders and installation components for sale. These products are differentiated by many features. One of the most critical features and criteria for decoder selection is the electrical interface. There is no right or wrong connector, only the one that matches the locomotive installation or best meets the needs of your project.

The NMRA has developed a Recommend Practice document that is used by manufacturers to insure consistent application of the many decoder electrical interface connector types in use today.

NMRA Recommended Practices and Technical Notes

9.1.1 Decoder Interfaces (1/31/2021)

TI-9.1.1 Sources for Connectors for DCC Decoders - (11/19/2021)

S-9.1.1.1 Six and Eight Pin Decoder Interface (11/13/2020)

S-9.1.1.2 JST-9 Decoder Interface (11/13/2020)

S-9.1.1.3 21 MTC Decoder Interface (12/1/2020)

TN-9.1.1.3 21 MTC Decoder Interface (12/1/2020)

S-9.1.1.4 PluX Decoder Interface (7/7/2021)

TN-9.1.1.4 PluX Decoder Interface (6/12/2021)

S-9.1.1.5 Next 18 and Next 18S Decoder Interface (12/6/2020)

TN-9.1.1.5 Next 18 and Next 18S Decoder Interface (9/10/2020)

DCC Interface & Pin Out Information

Hardwire

7, 9, 11 single wires with free ends (depending on decoder type).

E24

ESU has introduced a new interface in 2021 with the release of the ESU 58923 LokSound 5 Nano NMRA DCC Sound Decoder - Hardwire.

Per Matt Herman of ESU, LLC, "It is a new connection called E24. It is lower profile and more narrow. The only decoder on the market with this plug anywhere is the LokSound Nano. We needed to go this direction to keep the height down, and the width down. PLUS... It allows more outputs through the plug. This was a limitation with the Next18."

CLICK HERE to view RailCommunity Technical Document RCD-124